background and objectives: musculoskeletal disorders are common among children. burden imposed on neck, shoulder and back areas by carrying schoolbags may result in musculoskeletal disorders in students. the aim of this study is to determine the frequency of musculoskeletal symptoms and factors associated with these symptoms in students of tehran.   methods: three hundred and forty students par...

background sarcoidosis is a multisystem disease affecting different organs with different frequency rates depending on geographical location. musculoskeletal abnormalities includes osseous lesions (small and large bone sarcoidosis), sarcoidal arthropathy, and sarcoidal myopathy. musculoskeletal involvement is reported in a significant number of patients. objectives this study aimed to determine...

background: the agricultural sector is one of the most important sectors in production. the safety and health of farmers are important factors that can cause a significant increase in efficiency and productivity. the aim of this study was the assessment of musculoskeletal disorders (msds) using the ovako working posture analysis system (owas) and evaluation of the effect of ergonomic training o...

background: plasterers are at risk of musculoskeletal disorders (msds) due to the nature of their occupation and ergonomic factors. the purpose of this study was to evaluate the biomechanical risk factors for msds among plasterers. materials and methods: in this descriptive study, 70 plasterers from neyshabur, iran, were studied in 2014. the nordic musculoskeletal questionnaire (nmq) was used t...

background: individuals, who spend most of their time sitting, are at 30% more risk of suffering from lumbar disc than other people. one of the causes of pain in the lumbar region is musculoskeletal disorders (msds). msds are the most common and most costly injuries in occupational, administrative, and academic environments. therefore, the aim of this study was to investigate the relationship b...

background: musculoskeletal disorders (msds) are among important health problems in working population. because of performing difficult physical activities, hand-woven shoe-sole makers are at risk of developing various types of msds. objective: to determine the prevalence of musculoskeletal symptoms in different body areas of hand-woven shoe-sole makers, assess workers′ postures and workstation...

background: bakers, due to the nature of their jobs, are at risk of musculoskeletal disorders (msds) caused by ergonomic factors. the purpose of this study was to evaluate the biomechanical risk factors for msds in bakers. materials and methods: in the current study, all sangak, taftoon, and lavash bread bakeries in gonabad, iran, were selected based on census method. then, hierarchical task an...

background: the aim of this paper was the comparison of ergonomic risk assessment results (final score and action levels) for the entire body as determined using quick exposure check (qec) and rapid entire body assessment (reba).  materials and methods: this was a cross-sectional study in which all 82 workers engaged in various processes with different activities in an anodizing and aluminum pr...

background: nowadays job stress is one of the most important health problems that health and safety professionals are facing with. much of previous studies have focused on interventions such as stress management and, they have ignored the role of psychosocial factors in occurrence of job stress. this study investigated the mediator role of supervisor support on the association between work stre...